6 Ergebnisse.

Le cobalt, métal assez peu connu, entre dans la plupart des alliages ayant leur utilité allant de l'aéronautique civile ou militaire, aux outils de coupe tout en passant par les peintures, les aimants, les disques compactes, les bandes audio et vidéo, les batteries des voitures hybrides, des téléphones, des ordinateurs portables et des simulateurs cardiaques. On trouve ainsi dans cet ouvrage des informations sur l'origine, l'élaboration du co...

This book is a compendium, a mine of information, experiences and relevant industry practices, a must have, a book to learn about one of the most influential strategic metal impacting the global economic scene. Roger RUMBU, Met. Eng. - University of Lubumbashi, PPM Certificate - University of Pretoria

Actuellement, prêt de 20%% de la production mondiale de cobalt, soient prêt de 10 000 tonnes et 60%% de la production mondiale de super-alliages à base de cobalt sont récupérés par les USA qui considèrent ce métal comme hautement stratégique au point que sa carence pourrait affecter sérieusement ses domaines économiques, industriels et militaires ainsi que ceux de nombreux pays hautement industrialisés. On trouve ainsi dans cet ouvrage des in...

Mining operations are the key elements in this time of technical changes and development. Transport, housing, different infrastructures are requiring more and more mining resources. the release of a new smartphone or tablet, the top self-driven electrical, the rocket program are all felt in the womb of the earth somewhere in all continents and very soon in the moon. Even a new secured banking note or a pacemaker have their roots in the mines.M...

The current technological challenges mean that engineers are expected to apply the available extraction in the field of extractive metallurgy.Extraction of copper, one of the most used metals, has been practiced since ancient times around the world.Three crucial steps, namely sulphide roasting, leaching of ores and concentrates, and electro-extraction through solvent extraction, are described here with ample details, diagrams, examples and exp...

Steel is one of the most important industrial and construction commodities. Nowadays in 2017, its worldwide production is more than 1.6 billion tons per year.Growing demands for its production result from its properties:- large flexibility of properties - recyclability